Results 21 to 30 of about 2,611 (163)
Assessing the effectiveness of conservation measures : resolving the "wicked" problem of the Steller sea lion [PDF]
“Wicked” problems are those that are complex and that change when solutions are applied. Many conflicts in conservation fall in to this category.
Boyd, Ian Lamont, I.L. Boyd
core +1 more source
Stranding trends of Steller sea lions Eumetopias jubatus 1990-2015
Distinct population segments of Steller sea lion (SSL) Eumetopias jubatus have experienced different population trends over the last 5 decades, rendering the need for retrospective study. By identifying long-term stranding trends of SSLs we can develop a
Esquible, J, Atkinson, S
doaj +1 more source
Linking reproduction and survival can improve model estimates of vital rates derived from limited time-series counts of pinnipeds and other species. [PDF]
We propose a method to model the physiological link between somatic survival and reproductive output that reduces the number of parameters that need to be estimated by models designed to determine combinations of birth and death rates that produce ...
Brian C Battaile, Andrew W Trites
doaj +1 more source
The latest data on abundance and distribution of northern fur seal ( Callorhinus ursinus ), Steller sea lion ( Eumetopias jubatus ), and spotted seal ( Phoca largha ) at Tyuleny Island (Okhotsk Sea) are presented.
Alexey E. Kuzin
doaj +1 more source
Assessment of Competition between Fisheries and Steller Sea Lions in Alaska Based on Estimated Prey Biomass, Fisheries Removals and Predator Foraging Behaviour. [PDF]
A leading hypothesis to explain the dramatic decline of Steller sea lions (Eumetopias jubatus) in western Alaska during the latter part of the 20th century is a change in prey availability due to commercial fisheries.
Tabitha C Y Hui +3 more
doaj +1 more source
We examined structural properties of the marine mammal respiratory system, and tested Scholander’s hypothesis that the chest is highly compliant by measuring the mechanical properties of the respiratory system in five species of pinniped under anesthesia
Andreas eFahlman +8 more
doaj +1 more source
Drag, but not buoyancy, affects swim speed in captive Steller sea lions
Swimming at an optimal speed is critical for breath-hold divers seeking to maximize the time they can spend foraging underwater. Theoretical studies have predicted that the optimal swim speed for an animal while transiting to and from depth is ...
Ippei Suzuki +5 more
doaj +1 more source
Alpha diversity of marine mammals of the Mexican South Pacific
Knowledge of the alpha diversity contributes to the determination of conservation priorities by identifying regions with high species richness and/or a large number of endemic, rare, or endangered species.
Francisco Villegas-Zurita +3 more
doaj +1 more source
Understanding spatio-temporal variability in demography and the influence of environmental conditions offers insight into the factors underlying population dynamics.
AJ Warlick +4 more
doaj +1 more source
Intraperitoneal implantation of life-long telemetry transmitters in otariids
Background Pinnipeds, including many endangered and declining species, are inaccessible and difficult to monitor for extended periods using externally attached telemetry devices that are shed during the annual molt.
Haulena Martin +3 more
doaj +1 more source

